package com.itheima.controller;

import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
import com.itheima.common.R;
import com.itheima.entity.Category;
import com.itheima.service.CategoryService;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.*;

import java.util.List;

@RestController
@RequestMapping("/category")
@Slf4j
public class CategoryController {
    @Autowired
    private CategoryService categoryService;

    public CategoryController(CategoryService categoryService) {
        this.categoryService = categoryService;
    }

    @PostMapping
    public R<String> save(@RequestBody Category category) {
        log.info("category:{}", category);
        categoryService.save(category);
        return R.success("新增分类成功");
    }

    @GetMapping("/page")
    public R<Page> page(Integer page, Integer pageSize) {
        //分页构造器
        Page<Category> pg = new Page<>(page, pageSize);
        //条件构造器
        LambdaQueryWrapper<Category> lq = new LambdaQueryWrapper<>();
        lq.orderByAsc(Category::getSort);
        categoryService.page(pg, lq);
        return R.success(pg);
    }

    @DeleteMapping
    public R<String> delete(Long id) {
        //categoryService.removeById(id);
        categoryService.remove(id);
        return R.success("分类信息删除成功");
    }

    @PutMapping
    public R<String> updete(@RequestBody Category category){
        log.info("修改信息：{}",category);
        boolean b = categoryService.updateById(category);
        return R.success("修改成功");
    }

    //根据条件查询分类数据
    @GetMapping("/list")
    public R<List<Category>> list(Category category){
        //条件构造器
        LambdaQueryWrapper<Category> queryWrapper = new LambdaQueryWrapper<>();
        //添加条件
        queryWrapper.eq(category.getType() !=null,Category::getType,category.getType());
        //添加排序条件
        //先根据sort字段排序，如果相同，则根据时间排序
        queryWrapper.orderByAsc(Category::getSort).orderByDesc(Category::getUpdateTime);

        List<Category> list = categoryService.list(queryWrapper);
        return R.success(list);
    }


}
